ORIGINAL: lfuller
I dont understand?the measurements seem about the same as other planes listed as being 25%.73" wing and 66.5" length and approx 10lbs
Key words "listed as being" however, the full scale Yak has 8.16m wing span or 321 inches.
321 * .25 = 80.25 so it would have to be slightly over 2m to be true 1/4 scale, or IMAA legal

as the 25 percent would seem to indicate.
Edit: The length is closer, it would have to be 68" (rounded down)